function map = vm_map_dct(src_img, blkw, blkh)

blk_list = vm_im2blk(src_img, blkw, blkh);
[brows bcols] = size(blk_list);
blk_type = zeros(brows, bcols);
for i = 1:brows
    for j = 1:bcols
        blk = blk_list{i,j};
        blk_type(i,j) = vm_map_dct_blk(blk);
    end
end
map = vm_maprender(src_img, blk_list, blk_type);
end
